win32: ash: openredirect(): support /dev/null

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 3380e573e..dcf6fcbcb 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -5044,6 +5044,31 @@ openredirect(union node *redir)
         char *fname;
         int f;
 
+#if ENABLE_PLATFORM_MINGW32
+        /* Support for /dev/null */
+        switch (redir->nfile.type) {
+                case NFROM:
+                        if (!strcmp(redir->nfile.expfname, "/dev/null"))
+                                return open("nul",O_RDWR);
+                        if (!strncmp(redir->nfile.expfname, "/dev/", 5)) {
+                                ash_msg("Unhandled device %s\n", redir->nfile.expfname);
+                                return -1;
+                        }
+                        break;
+
+                case NFROMTO:
+                case NTO:
+                case NCLOBBER:
+                case NAPPEND:
+                        if (!strcmp(redir->nfile.expfname, "/dev/null"))
+                                return open("nul",O_RDWR);
+                        if (!strncmp(redir->nfile.expfname, "/dev/", 5)) {
+                                ash_msg("Unhandled device %s\n", redir->nfile.expfname);
+                                return -1;
+                        }
+                        break;
+        }
+#endif
         switch (redir->nfile.type) {
         case NFROM:
                 fname = redir->nfile.expfname;